A Two-Way Neutronics/Thermal-Hydraulics Coupling Analysis Method for Fusion Blankets and Its Application to CFETR

Tao Dai, Liangzhi Cao, Qingming He, Hongchun Wu and Wei Shen
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Tao Dai: School of Nuclear Science and Technology, Xi’an Jiaotong University, Xi’an 710049, China
Liangzhi Cao: School of Nuclear Science and Technology, Xi’an Jiaotong University, Xi’an 710049, China
Qingming He: School of Nuclear Science and Technology, Xi’an Jiaotong University, Xi’an 710049, China
Hongchun Wu: School of Nuclear Science and Technology, Xi’an Jiaotong University, Xi’an 710049, China
Wei Shen: School of Nuclear Science and Technology, Xi’an Jiaotong University, Xi’an 710049, China

Energies, 2020, vol. 13, issue 16, 1-20

Abstract: The China Fusion Engineering Test Reactor (CFETR) is a tokamak device to validate and demonstrate fusion engineering technology. In CFETR, the breeding blanket is a vital important component that is closely related to the performance and safety of the fusion reactor. Neutronics/thermal-hydraulics (N/TH) coupling effect is significant in the numerical analysis of the fission reactor. However, in the numerical analysis of the fusion reactor, the existing coupling code system mostly adopts the one-way coupling method. The ignorance of the two-way N/TH coupling effect would lead to inaccurate results. In this paper, the MCNP/FLUENT code system is developed based on the 3D-1D-2D hybrid coupling method. The one-way and two-way N/TH coupling calculations for two typical blanket concepts, the helium-cooled solid breeder (HCSB) blanket and the water-cooled ceramic breeder (WCCB) blanket, are carried out to study the two-way N/TH coupling effect in CFETR. The numerical results show that, compared with the results from the one-way N/TH coupling calculation, the tritium breeding ration (TBR) calculated with the two-way N/TH calculation decreases by −0.11% and increases by 4.45% for the HCSB and WCCB blankets, respectively. The maximum temperature increases by 1 °C and 29 °C for the HCSB and WCCB blankets, respectively.

Keywords: CFETR; fusion blanket; Neutronics/thermal-hydraulics Coupling (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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